Water-stop for deep wells.



No. 887,836. I PATENTED MAY 19, 1908. H. J. NEWHOUSB.

ION

FOR DEEP WELLS.

rum) 1120.17. 1906.

WATER ST I APPLIOAT IN VEN TOR WITNESSES:

UNITE STATES ATIJNT QFFIQEO 'f HARVY J. NEWHOUSE, OF YORKTOWN, INDIANA.

WATER-STOP FOR DEEP'WELLS.

Specification of Letters Patent.

Application filed December 17, 1906.

Patented May 19, 1908.

Serial No. 348,341.

To all whom it may concern:

Be it known that I, HARVY J. NEwHoUsE, a citizen of the United States, residing at Yorktown, in the county of Delaware and State of Indiana, have invented a new and useful l/Vater-Stop for Deep Tells, of which the following is a specification.

My invention relates to improvements in deep well casings, and has for its object to provide a device whereby the water. seeping into the completed well may be effectually shililt out and prevented from entering the we In the drilling of deep wells the maximum diameter of the hole is preserved until the lime stone or water-bearing strata is reached then the well is walled with a suitable metallic casing or tubing whereby the earth and gravel is prevented from falling into the well. Boring is then continued with a drill of smaller size, until the water-bearing strata has been passed through and the underlying 'lormation of rock has been reached. Then the well is lined with a second casing, the bottom section whereof rests directly on the rock-bottom of the well, the function of the latter casing being to shut out the water continually seeping through the walls of the well. Boring is then continued with a still smaller drill until the entire depth of the well is drilled out.

In the construction of wells for oil or gas, it is very desirable that the water seeping continually through the walls of the well, be shut completely out and effectually prevented from entering inside the casing during the drilling of the well below the water-bearing strata and during the use of the well after completion. Great difliculty has been experienced, in appliances as at present devised and in use, in obtaining such j ointure at the bottom of the casing with the seat upon which it rests, that the water surrounding the casing may be prevented from entering inside the casing.

The object of my invention is to provide means of simple construction and easy application whereby the difiiculty named may be overcome, and whereby the water may be shut out and effectually prevented from entering inside the casing of the well.

The aforenamed objects are accomplished by the novel construction described herein, illustrated in the accompanying drawings and pointed out in the appended claims.

In the drawings Figure 1. represents a side view of my improved water-stop complete; Fig. 2 is a vertical central sectional view of my invention as it appears when in use in a well, the section of well-casing screwed there in being shown as having its upper portion broken away.

Similar characters of reference refer to similar parts through the views.

1 designates the main sleeve provided with threads at its upper portion. The collar 2 suitably threaded so as to fit snugly the threaded portion of the main sleeve, is then screwed down on the main sleeve to its proper position.

3 designates a secondary sleeve suitably threaded and screwed down on the main 1sleeve and into close jointure with the col- 4 designates a ring or band of pliable material such as rubber, or preferably, of a combination of rubber and canvas, so that it will be tough and impervious and durable, as well as pliable or elastic; this ring or band is of length suflicient so that its lower edge protrudes slightly beyond the line of the bottom of the main sleeve.

In the practice of my invention, my improved water-stop is screwed on the section of casing which is to form the lower-most sec tion of the well casing. \Vhen the casing having my improved water-stop secured thereto is brought to rest in the well at the proper place, the pliable or elastic band immediately conforms to every irregularity of the rock ledge bottom of the water-bearing strata, whereby the line of connection of the casing to the ledge constituting the seat of the well, is completely closed, and not the slightest amount of water can enter into the well. The additional and superincumbent sections of easing necessary to complete the well are then placed in position and the well completed.

My improved device is not only exceedingly useful in the proper construction and handling of new wells, but it is useful and of great value in the rehabilitation of old wells. In old wells when the casing is removed and the well cleaned, the rock ledge forming the seat for the casing is often mutilated and' rendered irregular and out of true alinement and contour. By virtue of my improved water-stop the line of ointure of the casing with the bottom of the water-bearing strata will be closed effectively and the water which and a non-porous elastic sleeve secured to the would otherwise percolate within the casing 1 main member its upper end bearing against is effectively shut out. I the lower side of the ring and its lower end What I claim as my invention, and desire l to secure by Letters Patent, is

A device of the kind described, comprising In testimony whereof I have hereunto an open annular main member suitably signed my name, in the presence of two subthreaded on its up er portion, a ring screwed I scribing witnesses. down thereon to t 1e base of the threads, and HARVY J. NEWHOUSE.

a secondary open annular member threaded on its interior and screwed down 011 the main member into close contact with the ring,

l Witnesses:

E. V. CHARMAN, THOMAS L. RYAN.

extending slightly below the lower edge of. the main member, substantially as described.- 

